Cake
Icing
1. Oven on to 180°C. Grease and line 3 x 6 inch tins.
3. In bowl, add oil, eggs, zest, juice, vanilla extract and sugars. Mix.
4. In another bowl, add flour, bicarb, cinnamon, allspice, ginger and salt. Mix.
5. Tip flour mixture into oil mixture. Mix. Add carrots, nuts and raisins. Mix. Divide into tins.
6. Bake for 35-40 minutes until skewer comes out clean. Leave to cool.
8. Make icing. Beat butter in stand mixer until light and smooth. Sift icing sugar, cinnamon, allspice and ginger into bowl. Add icing sugar in 2 batches. Mix well each time. Add orange extract. Mix. Add splash of milk to loosen icing.
10. Add ? of icing into large piping bag (you can do this with a palette knife instead). Cut 2cm hole in piping bag. Place one cake on plate. Pipe on icing. Level with palette knife. Put next cake on. Repeat.
11. Pipe icing around side of cake and on top. Smooth with palette knife or cake scraper.
12. Put remaining icing in piping bag with star nozzle. Pipe stars on top. Place walnut half in each star on top of cake. Sprinkle over zest and cinnamon.